Sigmoid sinus
乙状窦
🧩 词语组成解析
a. S字形的, 乙状结肠的, C字形的\\nn. 乙状结肠
n. 窦, 静脉窦, 凹陷处
🗣️ 情景例句
Have you gotten over your cold?
你感冒好了吗？
I was writing some letters to friends of mine.
我在写一些信给我的朋友。
To know everything is to know nothing.
样样通，样样松。